Results 111 to 120 of about 851,032 (302)

Photoconductivity‐Driven Quantum Efficiency Gain in Inorganic Ruddlesden‐Popper Layered Cs2PbBr2I2 Perovskite Photodetector for Visible Light Detection

open access: yesAdvanced Functional Materials, EarlyView.
Rational halogen mixing strategy was employed to shift the bandgap of Cs2PbBr2I2 from ultraviolet to visible region, enabling first realization of a visible‐light photodetector with this 2D layered Ruddlesden‐Popper perovskite material. Under illumination, light‐induced internal field forms and drives trap‐mediated persistent photoconductivity ...
Md Fahim Al Fattah   +11 more
wiley   +1 more source

Design of Tri-Mode Frequency Reconfigurable UAV Conformal Antenna Based on Frequency Selection Network

open access: yesJournal of Low Power Electronics and Applications
With the rapid growth of unmanned aerial vehicles (UAVs) and IoT users, spectrum resources are becoming increasingly scarce, making cognitive radio (CR) technology a key approach to improving spectrum utilization.
Teng Bao   +9 more
doaj   +1 more source

Reflection and transmission of nonlinear water waves at a semi-submerged dock

open access: yesArchives of Mechanics, 2013
A theoretical approach is applied to predict reflection and transmission of nonlinear water waves at a semi-submerged dock. The solution was achieved analytically and by the method of matched eigenfunction expansions.
W. Sulisz
doaj   +1 more source

Thermal short improves sensitivity of cryogenically cooled maser [PDF]

open access: yes, 1968
In-line, quarter-wave thermal short cools the center conductor of the signal-input coaxial transmission line to a cryogenically cooled traveling wave maser.
Clauss, R. C.
core   +1 more source

Broadband, Flexible, Skin‐Compatible Carbon Dots/Graphene Photodetectors for Wearable Applications

open access: yesAdvanced Functional Materials, EarlyView.
Broadband, flexible photodetectors integrating nitrogen‐rich carbon dots with single‐layer graphene on plastic substrates are demonstrated. A biocompatible chitosan–glycerol electrolyte enables efficient low‐voltage gating and on‐skin operation. The devices exhibit ultraviolet‐to‐near‐infrared response, mechanical robustness under bending, and verified
Nouha Loudhaief   +20 more
wiley   +1 more source

Research on 1-Wire Bus Technology of Rotary Steerable System

open access: yesShiyou jixie, 2021
The effectiveness and feasibility of 1-wire bus technology to transmit waveforms has always been the focus of researches. The 1-wire bus technology is analyzed, and the 1-wire bus circuit signal control block diagram is designed according to its ...
Song Hongxi   +5 more
doaj  

Discovery and insights from DSX mission's high-power VLF wave transmission experiments in the radiation belts. [PDF]

open access: yesSci Rep, 2022
Song P   +20 more
europepmc   +1 more source

Wave Transmission through Vertical Slotted Walls

open access: yesCoastal Engineering 1974, 1974
This paper deals with the wave transmission through a vertical slotted wall. In an experimental study the transmission coefficient has been investigated as a function of the shape of the wall elements (rectangular shape and H-beam shape), of the ratio of solid wall to total wall length (wall-element ratio) and of the wave approach direction.
Joachim Grune, Soren Kohlhase
openaire   +2 more sources

Ionic‐Electronic Hydrogel‐Liquid Metal Composite Bilayer with Tissue‐Adaptive and Adhesive Properties for Closed‐Loop Neuroprosthetic System

open access: yesAdvanced Functional Materials, EarlyView.
A hydrogel–liquid metal composite peripheral nerve interface (HLB‐PNI) combines electrically durable electrodes and tissue‐adhesive hydrogel for tissue‐adaptive implantation. In nerve‐injured rats, it enables the diagnosis of sensory‐motor connectivity via stimulation and neural signal recording.
Yewon Kim   +5 more
wiley   +1 more source

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